Heating-furnace.



No. 801,824. PATENTED OCT. l0, 1905.

E. S. BERRY.

HEATING FURNACE.

APPLIUATION FILED ooT.1. 1904.

4 SHEETS-SHEET 1.

W/TNESSES. INVENTOR No. 801,824. PATENTED OCT. 10, 1905. E. S. BERRY.

HEATING PURNAGE.

APPLIOATIOH FILED ooT.1. 1904.

4 SHEETS-SHEET 2.

fg?. s'.

IVVENTOR No. 801,824. PATENTED OCT. l0, 1905. E. S. BERRY.

HEATING PURNACE. APPLIOATION FILED ooT.1. 1904.

4 SHEETS-SHEET 3.

/ A fr0/mf; V.

PATBNTED OCT. 10, 1905.

E. S. BERRY. HEATING FURNACE.

APPLIUATION FILED ooT.1. 1904.

4 SHEETS-SHEET 4.

INI NTR d.

WITNESSES:

A TTU/@NE Y.

@eisernes-Fun Specification oi Letters Patent.

Patented Oct. 10, 1905.

Application filed October 1,190. Serial No. 226,771.

flfe it known that l, EDWARD S. Burner, seitipinn et' the United States,and e resident ofthe end countyv et Philadelphie, State of Penneniu,yhereinrentedeertein new and useful improvements in i'ieeting-Furnnces,of which the Afollowing; is e specification.

z-lj; invention rele `es to improvements in sting-furnaces; und theobject of my invenis to :furnish un eiiicient und simple furcstions forheating; water for heating` houses of any description, 4

My invention contemplates en arrangement of parts that een be put inplace or taken .down with the minimum expenditure of time und labor,luid te this end the festenings et" ille several parts ot the furnaceare oi' such uirneter that if necessary thegv can he out i, )rohenwithout destroying' any parts of the furnace proper.

"lhe sir or writer heated in s series or set t sentirete tiues orchambers which surround i? lire-chalutier nd which extend up shovere-chnmher, forming together e. combus- -ou-chember which will telic upe maximum 'nennt el? heut from the tire. Tl itops of .schnrge into e.commen reseronnectet 1 suit-able manner with the l l i ues me): beconnected directly with e space that is te be hentaiJ il. desiref; euchVlue may i. l, o -tonnectel un eetig, with end heet e. seperate L 'defor s. pussnge ot' the tlues, their cross-section inend the sides ofexpose ,e the nest overhang' i erenun'e direc-tl)Y exth me tine presentvan which the nocusoot dented, or one 4.or more of these 4 when inpince.

section of Fig. t on line C C; Fig. 6, u transverse section of Fig. eton line D D; Fig. 7, at transverse section et Fig. et on line E E; Fig.8, :i sectional View showing'the means for securing together the upperinner ends ot' the sir-fines; Fig. 9, e sectional View showing the meansfor securing' the top or cover und the outer sides ot the smoke-line.

l is the ash-pit ot' the furnace, which is furnished with the usualcleaning-doors i2.

3 is the coal-chute. y

-Lt represents the grate-bars.

l5 represents tlues in which the air is heuted. lhese tlues ure cust,forming' euch un independent section, und they are so arranged us toform the sides and top of the lire-chumber. A

1G is a wheel-like casting; which rests upon the top of the sides of the:ish-pit, which curries the sections or flues l5, which letter arehollow to permit the passage of air.

The lower nurts of the iiues l'gthut is, the purts extending' from thegrate-bars to or slightly above the bottom oi" the coul-chute 3 huvetour wells, :ill ot' which are suhstzur tiullyv vertical; but from upoint nt or near the bottom ofthe chute 3 the inner and side wells ol'the lues ruhe outwardly, the outer wall of the iiues remainingsubstantially Yerticel throughout their entire length. This constructionis clearly shown in Figs. Je, 5, 6, end T end results in u llue thecross-section of which increases in zueu es it rises, this constructionuli'ording u free nessuno for the nir, which becomes more highly heatedund correspondingg'ly expended us it rises in the lues.

.il the rear sides the llues ure furnished with I'lunues lo to close thesparco that would otherwise be left between they several llues is shownbest in Fie'. the .hires lf3 extend Yfrom the ton of tl e bese oiuesdthut to say, from :iter neer the the lire. number-'to :i point seineclist extreme upper end oi the die serez-ul tlues in z buses, that pn,

lOC

the lianges 16 do not extend quite to the top of the lues, and when thelines are in place the omission of the lflanges at this point formsopenings 17,y Fig. 1, for the passage of smoke and other products ofcombustion, which are through these lopenings discharged into asmoke-liuc 18, which surroundsI the` furnace, the inner walls of thislue being formed by the outer walls of the flues 15, while its outerwall is formed by al series of thincastings or plates 19, which aresecured together by bolts 20 or other suitable and convenient means.

.The top and. bottom of the smoke-flue are closed by covers 2l 22,respectively, and the ue is furnished with a smoke-collar 23, Figs. 1and 3, which is connected withl the chimney.

From Fig. 1 lit will be seen that the smokecollar 23 is placedsubstantially ,opposite and at the same height as the coal-chute 3 andthat beneath the coal-chute and smoke-collar are placed -cleaning-doors24. 0f these latter there are sufficient to permit the thorough cleaningof the bottom of the ue 18. e

25, Figs. 1 and 3, is a baule-plate dividing the rear part of the flue18 into an upper and a lower chamber.

26 is adamper in plate 25, If the damper be opened, the smoke andproducts of combustion, following the line of least resistance, willpass across the top of plate 25 down to the smoke-collar and thence tothe chimney. If the damper 26 be closed, the smoke, &c., are forced topass under the plate 25 to reach the chimney. This retards the draft andis not resorted to unless the re be in good condition.

27 is a sheet-iron or brick covering surrounding and inclosing thefurnace, as is usual.

y ring 29 forms a seat for` the under part of the plate 28 andY isitself Afb'arried by the upper ends ot the lues 15, v'shown in Fig. 8. i

1n Fig. 9 the meansilfor securing the cover 21 of the smoke-flue 18' tothe outer wall 19- of this flue are shown., 31 being a bolt, passingthrough the wall 19 and through a keeper 32, one leg of which bearsagainst wall 19 and the other against cover 21.

serena 33, Figs. 1, 2, and 3, is a dust-Hue leading from the ash-pit tothe bottom of the coalchute 3. This lue is furnished with a register orldamper 34:, which may be Aopened or closed, as conditions may require.

35, Figs. 1 and 2, is awater-front the inner face of which forms a partof the lire-chamber of the furnace. rlhis water-front is placed directlybeneath the coal-chute 3 and at this point, in` order to form an openingfor the passageof coal to the furnace, one or two of the llues 15 areomitted, their` place at the bottom being taken by the water-front or bya simple casting or plate which may be used interchangeably with thewater-front. Above the coal-chute 3 short lines are used to lill up thespace between the longer flues, of which there is one on either sidelofthe chute.`

The arrangement of grate-bars shown and described in this applicationwill form the subject of a separate application.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A flue for a heating-furnace having a lowerportionformed with four vertical walls and an upper portion formed with avertical rear wall and an inner and two side walls all of which are fromtheir bottoms outwardly, the side walls of the lower portion of saidflue being at their upper ends bent sharply inward to join the lowerendsot` the side walls of the upper portion of said iue so as to chokeoli or contract the flue at this point.

2. The combination with a heating-furnace, of a series of air-heatingflues surrounding and forming a lire-pot and a combustion-chamber,`thelower portionof each of Said flues being formed with four vertical wallsand the upper portions or' each ofI said lines being formed `with asubstantially vertical rear wall and two side walls and an inner, orfront, wall that flare from their bottoms outwardly, each of said uesbeingcholred ofi, or contracted, at the junction of their lower andupper portions.

EDWARD S. BERRY.

Witnesses:

WAYNE P. RAMBO, J. C. HERLEY.

